Lock slider for separable fasteners



Sept. 26,1939. 1:. MARINSKY LOCK SLIDER FOR SEPARABLE FASTENERS FiledDec. 2, 1937 2 Sheets-Sheet 1 INVENTOR 0414s M/P/A/SKY pt. 26, 1 D.MARINSKY 2,174,161

LOCK SLIDER FOR SEPARABLE FASTENERS Filed Dec. 2, 1937' 2 Sheets-Sheet 2I/IIlI/IIAY I I A'I 'T ORN EY Patented Sept. 26, 1939 UNITED STATESPATENT OFFICE LOCK SLIDER FOR SEPARABLE FASTENERS Application December2, 1937, Serial No. 177,704

' 6 Claims. (01. 24-205),

This invention relates to the sliders of separable fasteners andparticularly to what are known as automatic lock sliders having meansfor engaging one or more links of a. fastener stringer to retain theslider against movement thereon; and the object of the invention is toprovide a slider of the class described which is.constructed from diecast materials, preferably thermoplastic material, such for example ascellulose acetate; and

especially wherein the slider is provided with means in the form of alocking pin or part for retaining the slider against movement on thestringers of a separable fastener; a further objectbeing to provide aslider of the class dem scribed wherein the body portion proper-thereofis formed from a unitary casting and wherein separate independently castparts are associated and coupled therewith; a further object being toprovide a finger piece or pull cooperating with the locking pin wherebythe pin maintains a locked position, when the pull is in inoperativeposition and further whereby the pin is moved into inoperative positionwhen the pull is raised in operating the slider longitudinally of thestringers; a further object being to provide a pin part movably disposedupon the slider and in connection with which the pull is pivotallycoupled with means involving a tensional device for retaining the pinpart against displacement from the slider; a still further object beingto provide a hood or housing portion partially enclosing the pin partand integrally or otherwise united with the body portion of the slider;and with these and other 86 objects in view, the inventionconsists in adevice of the class and for the purpose specified, which is simple inconstruction, eilicient in use, and which is constructed as hereinafterdescribed an claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which:

Fig. 1 is an enlarged face view of one end portion of a separablefastener showing one of my improved sliders thereon.

Fig. 2 is a partial section on the line 2-4 of Fig. 1.

Fig. 3 is a view similar to Fig. 2 showing the parts in a differentposition.

. Fig. 4 is a partial section on the line 4-4 of M Fig. l.

Fig. 5 is a side and sectional view of a modified form of slider.

vFig. 6 is a sectional view through the slider shown in Fig. 5indicating the method of assembling same. 5

Fig. 7 is a partial section on the line '|-i of Fig. 5.

Fig. 8 is a partial section on the line 88 of Fig. 5.

Fig. 9 is a view similar to Fig. 5 showing an- 10 other modification;and,

Fig. 10 is a detailed view of apart of the construction shown in Fig. 9.v

In Fig. 1 of the drawings I have shown for the purposeof illustratingthe general use of the in- 15 vention, portions of two fastenerstringers ll--l la, consisting of the conventional stringer tapes to thebeaded edges of which are attached coupling links or scoops I2--l2a, andwhen the latter scoops are composed of thermoplastic ma- 20 terial, suchas cellulose acetate, the other parts of the fastener including theslider later described, are correspondingly formed. In the constructionshown, the fastener is of a separable type having means at one end fordetachably cou-' pling the stringers; this means consisting of a blockl3 having an integral bar portion M disposed on and forming part of thestringer Ma and a bar [5 which is insertable into and out of the blockl3 in separating the stringers; especially when the slider 16 is movedinto juxtaposition to the block 13. At H are shown conventionalreinforcing plates secured to the stringers H and. I2 adjacent thatportion thereof engaged by the block I3. However, it will be understoodthat my invention is applicable to any type or kind of stringers. I

In the construction shown in Figs. 1 to 4, inclusive, the slider l6consists of the usual or any desired body having a top wall 18, bottomwall l9, said walls being integrally joined by a substantially V-shapedconnecting web 20. The slider is in the form of a die casting and whilethis casting may be metallic, the present structure relates primarily tothe thermoplastic castings employing such materials as celluloseacetate.

The top wall 18 of the slider has an upwardly extending arc-shaped hoodor strap 2|, which is integrally formed with the body of the slider andwhich may be formed and assembled in accordance with teachings laterdescribed. In practice I provide a member 22 having a-downwardlyextending coupling element or pawl 23 which passes through and operatesin an aperture 24 formed in the top wall l8 of the slider as seen inFig.4 of the drawings; the member 22 also including an upwardlyprojecting rod or stem 25 which is free to move vertically in anaperture 26 formed in the strap or hood 2|.

In the construction shown, the stem 25 is independently formed andsecured in the member 22. Studs 21 are also preferably secured toopposite sides of the member 22 and pass through the yoke-shaped end 28of a finger piece or pull 29 in pivotally supporting the pull inconnection with the member 22. The pull 29 is free to swing from theposition shown in full lines in Fig. 2 to that shown in dotted lines insaid figure and to assume any position intermediate said first namedpositions, one of which is indicated in Fig. 3 of the drawings. Theyoke-shaped end 28 projects sufficiently beyond the studs 21 to form camportions 30 which operate upon the top wall l8 to raise the member 22against the action of a spring 3| disposed upon the stem 25 beneath theinner surface of the hood 2|, so as to raise the part 23 out ofengagement with one of the links of the fastener stringers.

In the construction shown, the part 23 is so arranged as to engage thelinks l2 of the stringer II in retaining the slider against movement onthe stringers; thepart 23 being shown in operative position in Figs. 2and 4, and in inoperative position in Fig. 3.

It will be understood that the member 22 may be composed of metal or ofthermoplastic material if desired as is also the case with the pull 29.It will also be apparent that in constructing the device shown in Figs.1 to 4 inclusive according to the teachings in Figs. 5 and 6, as well asin Figs. 9 and 10, both later described, the parts 22, 25, and 29 may beassembled as a unit prior to attachment to the slider, in which latterevent, the stem 25 and studs 21 may be a unit part of the member 22, aswill be apparent.

In Figs. 5 to 8 inclusive, I have shown a modification wherein theslider 32 or the top wall 33 thereof includes an integral strap or hoodpart 34 which joins the slider at the end 35, whereas the other end 36is adapted to snap over a projecting hook 31 in coupling said end withthe corresponding end of the slider as seen in Fig. 5, andas will appearfrom a consideration of Fig. 6 of the drawings. The end 36 of the hoodpart 34 may be also cemented in position if desired.

In this construction, the hood 34 includes adiacent the end 36,depending side walls 38. With this construction, the lock element ormember is in the form of a plate 39 having a curved pivot portion 40forming the pivotal support for a finger piece or pull 4| or thecross-head 42 thereof, the element 39 having a depending pin or pawlpart 43 which passes through an aperture 44 in the top wall 33 of theslider. The other end of the element 39 is adapted to rest upon the topwall of the slider andis provided with an aperture 45 for receiving a.coupling pin 46 which is held in position by entering an aperture 41 inthe top wall 33, and a corresponding aperture 49 on the inner surface ofthe hood 34, a spring 49 being disposed on the pin to retain the elementin depressed position. This construction will operate primarily the sameas the structure shown in-Figs. 1 to'4 inclusive; that is to say, theup.- ward movement of the pull when grasped by the operator will causethe member 39 to be raised as is indicated in dotted lines in Fig. 6 ofthe drawings.

In Figs. 9 and 10 of the drawings, I have shown or strap 56 is made asan independent part and is secured to the upper surface of the top wall5| of a slider 52 by cementing or otherwise, and with this construction,the hood or strap 56 is provided with side walls 53 which are simplyapertured as seen at 54 to receive the crosshead 42a of a pull similarto the pull 4|. Aside from the foregoing, the structure shown in Figs. 9and 10, is similar to that shown in Figs. 5 to 8 inclusive with respectto the part 39a which is equivalent to the part 39 and the pin 46a andspring 49a.

As previously stated, the structure shown in Figs. 5 to 10, inclusive,especially with respect to the strap or hood, is applicable to thestructure shown in Figs. 1 to 4, inclusive.

It will also be apparent that the parts 39-39a, 46--46a, may be composedof metal or of suitable plastic materials, depending entirely upon thestructure of the device as a whole, or the requirements of the merchantor consumer purchasing the same.

It will also be understood that the hood portion of the slider,especially when composed of thermoplastic material, may be formed from amaterial of one color which would be contrast-.

ing to the color of the remainder of the slider; and this is especiallytrue with the structure such as shown in Figs. 9 and 10.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is:

l. A look slider for separable fasteners employing stringers havingcoupling links spaced longitudinally thereof adapted to be coupled anduncoupled in the longitudinal movement of the slider along saidstringers, said slider comprising a channeled body having top and bottomwalls, a hood extending longitudinally of said top wall, a pull, meansfor pivotally supporting the pull in connection with the top wall ofsaid slider, said means comprising a spring actuated member, looselysupported between said hood and top wall, said wall of the slider havingan aperture adjacent said member, said member having a pin part movablethrough the aperture in said slider to project into and out of thechannel thereof, the mounting of said member in connection with theslider and hood including a perpendicular rod engaging the hood and topwall of the slider, and a coil spring mounted on said rod andcooperating with said member to normally support the pin thereof in aposition projecting into the channel of said slider.

2. A look slider for separable fasteners employing stringers havingcoupling-links spaced longitudinally thereof adapted to be coupled anduncoupled in the longitudinal movement of the slider along saidstringers, said slider comprising a channeled body having top and bottomwalls, .a hood extending longitudinally of said top wall, a pull, meansfor pivotally supporting the pull in connection with the top wall ofsaid slider, said means comprising a spring actuated member looselysupported between said hood and top wall, said wall of the slider havingan aperture adjacent said member, said member having a pin part movablethrough the aperture in said slider to project into and out of thechannel thereof, the mounting of said member in connection with theslider and hood including a perpendicular rod engaging the hood and topwall of the slider, a coil spring mounted on said rod and cooperatingwith said member to normally support the pin thereof in a positionprojecting into the channel of said slider, means on said pull forwithdrawing the pin of said member out of said channel in the operationof grasping and raising the pull for moving the slider longitudinally ofthe fastener stringers, one end of said hood being integrally unitedwith the slider body, and means on the other end of said hood andcorresponding end of the slider body for securing the second named endof the hood to said slider body.

3. In separable fasteners of the class described, a lock slider, saidslider comprising a die cast thermoplastic channeled body having a hoodportion extending longitudinally thereof, a finger piece for moving saidbody along the fastener in coupling and uncoupling said fastener, aspring actuated member for pivotally supporting the finger piece toswing freely in the direction of both ends of the slider, a projectinglock element on said member adapted to project into the channel of saidslider when the pull is-arranged in a position substantially parallelingthe longitudinal plane of the slider, means whereby the upward swingingmovement of said finger piece, in the operation of graspiing the same tooperate said slider, said lock element is withdrawn from the channel ofsaid slider to permit free movement of the slider longitudinally of thefastener, the mounting of said member in connection with the slidercomprising a perpendicularly disposed pin extending into said hood and aspring on said pin cooperating with said member to normally support saidlock element in operative position.

4. A lock slider for separable fasteners employing stringers havingcoupling links spaced longitudinally thereof adapted to be coupled anduncoupled in the longitudinal movement of the slider along saidstringers, said slider comprising a channeled body having top and bottomwalls, a hood extending longitudinally of said top wall, a pull, meansfor pivotally supporting the pull in connection with the top wall ofsaid slider, said means comprising a member loosely mounted between saidhood and top wall, a vertically disposed phi in said hood and extendingthrough said member to key said member against displacement, said wallof the slider having an aperture adjacent said member, said memberhaving a pin part movable through the aperture in said slider to projectinto the channel thereof to lock wall, a pull, means for pivotallysupporting the pull in connection with the top wall of said slider, saidmeans comprising a member loosely mounted between said hood and topwall, a vertically disposed pin in said hood and extending through saidmember to key said member against displacement, said wall of the sliderhaving an aperture adjacent said member, said member having a pin partmovable through the aperture in said slider to project into the channelthereof to lock the slider, a spring within the hood and cooperatingwith said member to support the same in locked position, said pin beingarranged intermediate and in spaced relation to the ends of said hood,and said pull being movable onto both end portions of the top wall ofthe slider.

6. In separable fasteners of the class described, a lock slider, saidslider comprising a channeled body having top and bottom walls, a springactuated lock member freely movable toward and from the top wall of theslider, means including a perpendicular pin keying and retaining saidmember against displacement from said top wall, a pull having a pivotend portion, means on said member engaging the pivot end portion of saidpull to form the sole pivot mounting for said pull, alock element onsaid member normally extending into the channel of the slider to lockthe same when the pull substantially parallels the top wall of theslider, and means on the pull cooperating with the top wall of theslider for the upward swinging movement of the pull to withdraw the lockelement fromthe channel of the slider for free movement of the sliderlongitudinally of the fastener.

DAVIS mm.

